Error from within `node_modules/`

[Tyler C Laprade, CFA]

After setting up ts-reset, I get the following error when running TypeScript:

node_modules/@reduxjs/toolkit/src/query/core/buildMiddleware/batchActions.ts:109:7 - error TS2322: Type 'unknown' is not assignable to type 'SubscriptionState'.

109       previousSubscriptions = JSON.parse(
          ~~~~~~~~~~~~~~~~~~~~~

node_modules/@reduxjs/toolkit/src/query/core/buildMiddleware/batchActions.ts:145:17 - error TS2322: Type 'unknown' is not assignable to type 'SubscriptionState'.

145           const newSubscriptions: SubscriptionState = JSON.parse(

This is nested deep in one of my dependencies. It's hard for me to even determine why it's being called.

Interestingly, when I imported ts-reset like this, there was no problem locally, but TSC failed in GitHub Actions:

/// <reference types="@total-typescript/ts-reset" />

Once I swapped to this format, I got the same error locally that I was seeing in GitHub Actions:

import '@total-typescript/ts-reset';

[Daniel Flockert]

There is a TypeScript compiler option called skipLibCheck (see TypeScript Docs) which is generally recommended since there is no need to type check libraries in node_modules.

Rather than doing a full check of all d.ts files, TypeScript will type check the code you specifically refer to in your app’s source code.

[Daniel Flockert]

I just saw your reply, so I'm assuming skipLibCheck does not help?

[Tyler C Laprade, CFA]

That's right - skipLibCheck only applies to .d.ts files, not actual .ts files.